Electro-optic Intensity Modulator / Phase Modulator and Driver

List of EO Modulators & Drivers

• Phase Modulator

• Intensity Modulator

• Driver

1. Electro-optic Intensity Modulator

The STK-AM series electro-optic intensity modulator utilizes the electro-optical effect of lithium niobate and push-pull Mach-Zehnder interference structure to achieve intensity modulation of optical signals. It features low insertion loss, high modulation bandwidth, high extinction ratio, low half-wave voltage and high damage optical power. This product is mainly used for electro-optical signal conversion in high-speed optical fiber communication systems, the generation of light sidebands, high extinction ratio light pulse generation in quantum communication, microwave fiber link and other fields.

Key Features

• Wavelengths optional

• Low half-wave voltage

• High bandwidth

• Low insertion loss

Applications

• High-speed optical fiber communication systems

• Microwave fiber link

• Quantum communication

1.1 1064nm High Extinction Ratio Electro-optic Intensity Modulator STK-AM-10

Key Features

• 1064nm Operation

• Low insertion loss

• 3dB bandwidth 5GHz

• Low half-wave voltage

• High Extinction Ratio >50dB

Applications

• Optical Pulse Generation

• Optical fiber sensing system

• Laser mode locking

The 1064nm high extinction ratio electro-optical intensity modulator integrates two Mach-Zehnder intensity modulators with a push-pull structure, which can achieve an extinction ratio of up to 50dB. It is used in the fields of high-speed optical pulse generation, fiber sensing, and laser mode locking.

Block diagram

*with connector

Absolute Maximum Ratings

Ordering Information

• STK-AM-10-BW-PP-FA/FP-HER

• WL—Wavelength: 10-1064nm

• BW—Bandwidth: 5G---5GHz

• FA/FP—Connector: FA---FC/APC; FP---FC/PC

1.2 1550nm High Extinction Ratio Electro-optic Intensity Modulator

Key Features

• C and L-Band Operation

• Low insertion loss

• 3dB bandwidth 10GHz

• Extinction ratio 35/40dB

• Low half-wave voltage

• Integrated Monitor Photodiode

• Telecordia GR-468-CORE

Applications

• Microwave fiber link

• Quantum communication

• Optical pulse generation

• Optical fiber sensing system

• Laser mode locking

The 1550nm High Extinction Ratio LiNbO3 electro-optical intensity modulator based on the M-Z push-pull structure has a low half-wave voltage and stable physical and chemical characteristics, and the device has a high response rate, high extinction ratio(>40dB) and is therefore widely used in microwave fiber link, Quantum communication, optical Q-switched systems, laser mode-locking, and fiber sensing .

Schematic diagram

Absolute Maximum Ratings

Characteristic Curve

Ordering Information: STK-AM-WL-BW-PP-FA/FP-ER

• WL—Wavelength:15-1550nm

• BW—Bandwidth:10G---10GHz 20G-20GHz

• FA/FP—Connector:FA---FC/APC; FP---FC/PC

• ER----Extinction Ratio: 35dB, 40dB

1.3 10GB 1550nm All-in-one Electro-optic Modulator STK-MU-15-NRZ

We can provide with the driver for the above electro-modulators and integrate the modulator, amplifier and relevant controllers together. The user can manually or automatically set the bias points. At the manual setting mode, the bias can be displayed and the EO modulator and amplifier individually operate. At the automatic setting mode, the user can set various bias points according to the demand and the bias point is locked and displayed. The modulation performance of the modulator is not influenced by external factors such as environment temperature and vibration.

Ordering Information: STK-MU-W-XX-BW-FB-YY-M/A

• W: wavelength such as 15-1550nm, 13-1310nm, 10-1064nm

• XX: modulation method such as NRZ, DPSK, DQPSK, DPQPSK, AN, PM

• BW: bandwidth such as 02-2.5G, 10-10G, 20-20G, 40-40G

• FB: input/output fiber type such as PP (input & output are PM), PS (input is PM and output is SM)

• YY: fiber connector such as FA-FC/APC, FP-FC/PC

• M/A: control mode, M is manual and A is automatic.

2. Electro-optic Phase Modulator

The STK-KY-PM series electro-optic phase modulator utilizes the electro-optical effect of lithium niobate to achieve phase modulation of optical signals, and uses titanium diffusion or proton exchange process to fabricate optical waveguides, which can achieve dual-polarization or single-polarization phase modulation. It has low insertion loss, high modulation bandwidth, low half-wave voltage, high damage optical power, etc. This product is mainly used for optical chirp control in high-speed optical communication systems, phase delay in coherent communication systems, the generation of optical sidebands, phase modulation in quantum communication, reducing stimulated Brillouin scattering (SBS) in analog optical fiber communication systems and other fields.

Key Features

• Wavelengths optional

• Low half-wave voltage

• Low insertion loss

• High damage optical power

Applications

• Optical fiber sensing systems

• Optical fiber communication

• Laser coherent synthesis

• Phase delay (movement)

• Quantum communication

2.1 1550nm Optical CS-SSB Modulation Modules

The STK-MU-SSB-15 series product is an optical CS-SSB modulation module developed by our company. The modulation module integrates Mach-Zehnder dual parallel modulators, bias point control circuits, 90 degree hybrid splitter, can achieve stable and reliable single sideband modulation, and can switch between left and right sideband control as needed. This product is mainly used in Brillouin fiber sensing systems, microwave photonics, gas detection and other fields.

Key Features

• Wavelength C-band

• Sideband suppression ratio:>30dB

• Carrier suppression ratio: >26dB

• Up and down sidebands

• Convenient to use and reliable

Applications

• Optical fiber sensing system

• Microwave photonics

• Gas detection

• Optical fiber communication systems

3. Drive Module for Electro-optic Modulator

Key Features

• 10G, 20G, 40GHz optional bandwidth

• Gain> 25dB

• Saturated output Max.25dBm (11Vpp)

• Rise time Min.<8ps

• Low jitter

• DC12V power supply

• Easy to use

Applications

• High-speed optical fiber communication system

• Quantum communication

• Picosecond pulse amplification

• Optical fiber sensing system

Product List

• 10G driver module

• 10G high output driver module

• 20G driver module

• 40G driver module

The STK-KY-MD-XX series electro-optic modulator driver is a broadband, high-output driver amplifier mainly used for lithium niobate electro-optical intensity and phase modulator. Its working bandwidth is up to 30K ~ 40GHz, and it can achieve a maximum of 42Gbps NRZ wideband signal amplification up to 8Vpp. It is mainly used in high-speed optical fiber communication systems, quantum communication, picosecond pulse amplification, and optical fiber sensing systems.

Absolute Maximum Ratings

Characteristic Curve

Typical Application